GitHub Activites from a New Country

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Id	f041e01d-840d-43da-95c8-4188f6cef546
Rulename	GitHub Activites from a New Country
Description	Detect activities from a location that was not recently or was never visited by the user or by any user in your organization.
Severity	Medium
Tactics	InitialAccess
Techniques	T1078
Kind	Scheduled
Query frequency	1d
Query period	7d
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/GitHub/Analytic Rules/GitHub - Activities from Infrequent Country.yaml
Version	1.0.1
Arm template	f041e01d-840d-43da-95c8-4188f6cef546.json

KQL

let LearningPeriod = 7d;
let RunTime = 1h;
let StartTime = 1h;
let EndRunTime = StartTime - RunTime;
let EndLearningTime = StartTime + LearningPeriod;
let GitHubCountryCodeLogs = (GitHubAuditData
| where Country != "");
  GitHubCountryCodeLogs
| where TimeGenerated between (ago(EndLearningTime) .. ago(StartTime))
| summarize makeset(Country) by Actor
| join kind=innerunique (
  GitHubCountryCodeLogs
  | where TimeGenerated between (ago(StartTime) .. ago(EndRunTime))
  | distinct Country, Actor, TimeGenerated
) on Actor 
| where set_Country !contains Country
| extend timestamp = TimeGenerated
| extend AccountName = tostring(split(Actor, "@")[0]), AccountUPNSuffix = tostring(split(Actor, "@")[1])

YAML

name: GitHub Activites from a New Country
query: |
  let LearningPeriod = 7d;
  let RunTime = 1h;
  let StartTime = 1h;
  let EndRunTime = StartTime - RunTime;
  let EndLearningTime = StartTime + LearningPeriod;
  let GitHubCountryCodeLogs = (GitHubAuditData
  | where Country != "");
    GitHubCountryCodeLogs
  | where TimeGenerated between (ago(EndLearningTime) .. ago(StartTime))
  | summarize makeset(Country) by Actor
  | join kind=innerunique (
    GitHubCountryCodeLogs
    | where TimeGenerated between (ago(StartTime) .. ago(EndRunTime))
    | distinct Country, Actor, TimeGenerated
  ) on Actor 
  | where set_Country !contains Country
  | extend timestamp = TimeGenerated
  | extend AccountName = tostring(split(Actor, "@")[0]), AccountUPNSuffix = tostring(split(Actor, "@")[1])  
queryFrequency: 1d
triggerOperator: gt
requiredDataConnectors: []
status: Available
entityMappings:
- entityType: Account
  fieldMappings:
  - identifier: FullName
    columnName: Actor
  - identifier: Name
    columnName: AccountName
  - identifier: UPNSuffix
    columnName: AccountUPNSuffix
triggerThreshold: 0
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/GitHub/Analytic Rules/GitHub - Activities from Infrequent Country.yaml
description: |
    'Detect activities from a location that was not recently or was never visited by the user or by any user in your organization.'
version: 1.0.1
id: f041e01d-840d-43da-95c8-4188f6cef546
kind: Scheduled
relevantTechniques:
- T1078
severity: Medium
tactics:
- InitialAccess
queryPeriod: 7d

ARM